EP 1564720 A2 20050817 - Apparatus and method for detecting voiced sound and unvoiced sound
Title (en)
Apparatus and method for detecting voiced sound and unvoiced sound
Title (de)
Vorrichtung und Verfahren zur Erkennung stimmhafter und nichtstimmhafter Sprache
Title (fr)
Dispositif et méthode pour la détection de sons voisée et non-voisée
Publication
Application
Priority
KR 20040008740 A 20040210
Abstract (en)
Provided are an apparatus and method for detecting a voiced sound and an unvoiced sound. The apparatus comprises: a blocking unit for dividing an input signal into block units; a parameter calculator for calculating a first parameter to determine the voiced sound and a second parameter to determine the unvoiced sound by using a slope and spectral flatness measure (SFM) of a mel-scaled filter bank spectrum of an input signal existing in a block; and a determiner for determining a voiced sound zone and an unvoiced sound zone in the block by comparing the first and second parameters to predetermined threshold values.
IPC 1-7
IPC 8 full level
G10L 15/02 (2006.01); G10L 25/00 (2013.01); G10L 25/18 (2013.01); G10L 25/93 (2013.01)
CPC (source: EP KR US)
D04D 9/06 (2013.01 - KR); D06Q 1/10 (2013.01 - KR); G10L 25/93 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1564720 A2 20050817; EP 1564720 A3 20070124; JP 2005227782 A 20050825; JP 4740609 B2 20110803; KR 101008022 B1 20110114; KR 20050080649 A 20050817; US 2005177363 A1 20050811; US 7809554 B2 20101005
DOCDB simple family (application)
EP 05250613 A 20050203; JP 2005032916 A 20050209; KR 20040008740 A 20040210; US 5066605 A 20050207